There are total 13 hours or 780 minutes from 7am to 8pm. In words, this duration is equal to thirteen hours or seven hundred eighty minutes.
How many hours from
| 10AM to 6PM | 6PM to 6AM | 5AM to 6PM |
| 2PM to 9AM | 7PM to 3PM | 4PM to 1PM |
| 10PM to 9AM | 5AM to 7AM | 9PM to 11AM |
| 10PM to 8PM | 7AM to 1AM | 1AM to 4AM |
| 12AM to 3AM | 12AM to 7PM | 4PM to 1PM |
| 10PM to 9AM | 11PM to 3PM | 4AM to 4PM |
